System.Windows.MessageBox doesn't wait for user input before going poof!

Question

...and it makes no sense why. T-T

In my Application_Startup event handler I have code that looks kinda like this:

private void Applicati         


        

Answer 1

Create transparent hidden window and use it as an owner of the MessageBox:

private Window CreateHiddenWindow()
        {
            var window = new Window
            {
                AllowsTransparency = true,
                Background = System.Windows.Media.Brushes.Transparent,
                WindowStyle = WindowStyle.None,
                Top = 0,
                Left = 0,
                Width = 1,
                Height = 1,
                ShowInTaskbar = false
            };

            window.Show();

            return window;
        }